Finding the Fourth Proportional to 196.25, 270.81 and 113.34

Step by Step Solution

1. Step 1: Write the proportion equation
   196.25 : 270.81 = 113.34 : x
2. Step 2: Convert to fraction form
   196.25/270.81 = 113.34/x
3. Step 3: Cross multiply
   196.25x = 270.81 × 113.34
4. Step 4: Simplify right side
   196.25x = 30,693.61
5. Step 5: Solve for x
   x = 30,693.61/196.25
6. Step 6: Final answer
   x = 156.40